Skip to main content
  • EN

Has anyone setup bonding with the VHR ISO? This probably isn’t VHR ISO specific but I thought I’d give it a good try.  Eventually the server this is going on will become my primary repo to replace the NAS my backups are going to currently.

With that said, I’m using two Dell S4112T switches in a VLT configuration with a 40Gb QSFP to 4x 10Gb SFP+ breakout cables providing a 10Gb link from each switch.  Server is a Dell PowerEdge R550 with Broadcom 57414 Dual Port 10/25 GbE SFP28 OCP NIC.  I’ve configured a port channel on the switches and configured an 802.3ad (Mode 4) bond on the server but watching pings run while the server is just sitting at the configuration in the installer, I’ve seen it drop a few packets here and there for a while and then it comes back up.  Looking at the switches when this happens, both of the interfaces and the port channel are showing up/up.  Bond configuration is as below (aside from the MTU being set to 9000 after I took the screenshot, but the effect was the same as when set to automatic).

 

I’ve heard that LACP links aren’t always the best to servers and even between switches they can be a bit weird, but I thought I’d might give it a try over Mode 6 (balance-alb).

BTW, thanks to @MicoolPaul and @vNote42 for their posts and the commenters as well as they give me some insight on what others are doing.

 

 

 

Have not tried bonding as yet myself but will be interested in what you find out. Best of luck getting it sorted out but post in the forum thread as well for better help from Hannes.

I run bonded pairs as balance-alb on all my LHRs. 

Just as a follow-up, I found that I am able to run the 802.3ad mode without issue so far as best I can tell.  I’ll keep an eye on things and worst case scenario I’ll remove the LACP port channel and fail back to using Adaptive Load Balancing (balance-alb Mode 6) instead . 

One thing that did throw me is that the VHR ISO does appear to have a firewall service configured that prevents ICMP responses, so after I had configured and deployed the VHR, it wasn’t pingable except when I would shutdown or restart the server briefly where I’m guessing the firewall service was shutdown but the network was still up.  If I enable SSH, I can connect even when pings are down, so what I thought after the deployment was the network interface being down appears to actually have just been the firewall.  

Hi @dloseke  I learned something new from reading your post thanks for the enlightenment 😊

Hey Derek, today started on customer side with a productive new HR based on the new ISO (Server Hardware DELL R760). 
In my opinion, setting up the LACP bond by GUI is a bit more tricky then by the regular setup (for example with Ubuntu), the popups were also a bit sluggish. But after all, it’s running also without an issue.

Hey Derek, today started on customer side with a productive new HR based on the new ISO (Server Hardware DELL R760). 
In my opinion, setting up the LACP bond by GUI is a bit more tricky then by the regular setup (for example with Ubuntu), the popups were also a bit sluggish. But after all, it’s running also without an issue.

It is tricky, but once you get the hang of it, it isn’t too bad at all.  

Comment


Terms & Conditions